src/msw/mimetype.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        msw/mimetype.cpp
   3 // Purpose:     classes and functions to manage MIME types
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     23.09.98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
   9 // Licence:     wxWindows licence (part of wxExtra library)
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef    __GNUG__
  13 #pragma implementation "mimetype.h"
  14 #endif
  15
  16 // for compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #ifdef __BORLANDC__
  20   #pragma hdrstop
  21 #endif
  22
  23 #if wxUSE_MIMETYPE
  24
  25 // Doesn't compile in WIN16 mode
  26 #ifndef __WIN16__
  27
  28 #ifndef WX_PRECOMP
  29     #include "wx/string.h"
  30     #if wxUSE_GUI
  31         #include "wx/icon.h"
  32         #include "wx/msgdlg.h"
  33     #endif
  34 #endif //WX_PRECOMP
  35
  36 #include "wx/log.h"
  37 #include "wx/file.h"
  38 #include "wx/intl.h"
  39 #include "wx/dynarray.h"
  40 #include "wx/confbase.h"
  41
  42 #ifdef __WXMSW__
  43     #include "wx/msw/registry.h"
  44     #include "wx/msw/private.h"
  45 #endif // OS
  46
  47 #include "wx/msw/mimetype.h"
  48
  49 // other standard headers
  50 #include <ctype.h>
  51
  52 // in case we're compiling in non-GUI mode
  53 class WXDLLEXPORT wxIcon;
  54
  55 // These classes use Windows registry to retrieve the required information.
  56 //
  57 // Keys used (not all of them are documented, so it might actually stop working
  58 // in future versions of Windows...):
  59 //  1. "HKCR\MIME\Database\Content Type" contains subkeys for all known MIME
  60 //     types, each key has a string value "Extension" which gives (dot preceded)
  61 //     extension for the files of this MIME type.
  62 //
  63 //  2. "HKCR\.ext" contains
  64 //   a) unnamed value containing the "filetype"
  65 //   b) value "Content Type" containing the MIME type
  66 //
  67 // 3. "HKCR\filetype" contains
  68 //   a) unnamed value containing the description
  69 //   b) subkey "DefaultIcon" with single unnamed value giving the icon index in
  70 //      an icon file
  71 //   c) shell\open\command and shell\open\print subkeys containing the commands
  72 //      to open/print the file (the positional parameters are introduced by %1,
  73 //      %2, ... in these strings, we change them to %s ourselves)
  74
  75 // although I don't know of any official documentation which mentions this
  76 // location, uses it, so it isn't likely to change
  77 static const wxChar *MIME_DATABASE_KEY = wxT("MIME\\Database\\Content Type\\");
  78
  79 void wxFileTypeImpl::Init(const wxString& strFileType, const wxString& ext)
  80 {
  81     // VZ: does it? (FIXME)
  82     wxCHECK_RET( !ext.IsEmpty(), _T("needs an extension") );
  83
  84     if ( ext[0u] != wxT('.') ) {
  85         m_ext = wxT('.');
  86     }
  87     m_ext << ext;
  88
  89     m_strFileType = strFileType;
  90     if ( !strFileType ) {
  91         m_strFileType = m_ext.AfterFirst('.') + _T("_auto_file");
  92     }
  93 }
  94
  95 wxString wxFileTypeImpl::GetVerbPath(const wxString& verb) const
  96 {
  97     wxString path;
  98     path << m_strFileType << _T("\\shell\\") << verb << _T("\\command");
  99     return path;
 100 }
 101
 102 size_t wxFileTypeImpl::GetAllCommands(wxArrayString *verbs,
 103                                       wxArrayString *commands,
 104                                       const wxFileType::MessageParameters& params) const
 105 {
 106     wxCHECK_MSG( !m_ext.IsEmpty(), 0, _T("GetAllCommands() needs an extension") );
 107
 108     if ( m_strFileType.IsEmpty() )
 109     {
 110         // get it from the registry
 111         wxFileTypeImpl *self = wxConstCast(this, wxFileTypeImpl);
 112         wxRegKey rkey(wxRegKey::HKCR, m_ext);
 113         if ( !rkey.Exists() || !rkey.QueryValue(_T(""), self->m_strFileType) )
 114         {
 115             wxLogDebug(_T("Can't get the filetype for extension '%s'."),
 116                        m_ext.c_str());
 117
 118             return 0;
 119         }
 120     }
 121
 122     // enum all subkeys of HKCR\filetype\shell
 123     size_t count = 0;
 124     wxRegKey rkey(wxRegKey::HKCR, m_strFileType  + _T("\\shell"));
 125     long dummy;
 126     wxString verb;
 127     bool ok = rkey.GetFirstKey(verb, dummy);
 128     while ( ok )
 129     {
 130         wxString command = wxFileType::ExpandCommand(GetCommand(verb), params);
 131
 132         // we want the open bverb to eb always the first
 133
 134         if ( verb.CmpNoCase(_T("open")) == 0 )
 135         {
 136             if ( verbs )
 137                 verbs->Insert(verb, 0);
 138             if ( commands )
 139                 commands->Insert(command, 0);
 140         }
 141         else // anything else than "open"
 142         {
 143             if ( verbs )
 144                 verbs->Add(verb);
 145             if ( commands )
 146                 commands->Add(command);
 147         }
 148
 149         count++;
 150
 151         ok = rkey.GetNextKey(verb, dummy);
 152     }
 153
 154     return count;
 155 }
 156
 157 // ----------------------------------------------------------------------------
 158 // modify the registry database
 159 // ----------------------------------------------------------------------------
 160
 161 bool wxFileTypeImpl::EnsureExtKeyExists()
 162 {
 163     wxRegKey rkey(wxRegKey::HKCR, m_ext);
 164     if ( !rkey.Exists() )
 165     {
 166         if ( !rkey.Create() || !rkey.SetValue(_T(""), m_strFileType) )
 167         {
 168             wxLogError(_("Failed to create registry entry for '%s' files."),
 169                        m_ext.c_str());
 170             return FALSE;
 171         }
 172     }
 173
 174     return TRUE;
 175 }
 176
 177 // ----------------------------------------------------------------------------
 178 // get the command to use
 179 // ----------------------------------------------------------------------------
 180
 181 wxString wxFileTypeImpl::GetCommand(const wxChar *verb) const
 182 {
 183     // suppress possible error messages
 184     wxLogNull nolog;
 185     wxString strKey;
 186
 187     if ( wxRegKey(wxRegKey::HKCR, m_ext + _T("\\shell")).Exists() )
 188         strKey = m_ext;
 189     if ( wxRegKey(wxRegKey::HKCR, m_strFileType + _T("\\shell")).Exists() )
 190         strKey = m_strFileType;
 191
 192     if ( !strKey )
 193     {
 194         // no info
 195         return wxEmptyString;
 196     }
 197
 198     strKey << wxT("\\shell\\") << verb;
 199     wxRegKey key(wxRegKey::HKCR, strKey + _T("\\command"));
 200     wxString command;
 201     if ( key.Open() ) {
 202         // it's the default value of the key
 203         if ( key.QueryValue(wxT(""), command) ) {
 204             // transform it from '%1' to '%s' style format string (now also
 205             // test for %L - apparently MS started using it as well for the
 206             // same purpose)
 207
 208             // NB: we don't make any attempt to verify that the string is valid,
 209             //     i.e. doesn't contain %2, or second %1 or .... But we do make
 210             //     sure that we return a string with _exactly_ one '%s'!
 211             bool foundFilename = FALSE;
 212             size_t len = command.Len();
 213             for ( size_t n = 0; (n < len) && !foundFilename; n++ ) {
 214                 if ( command[n] == wxT('%') &&
 215                      (n + 1 < len) &&
 216                      (command[n + 1] == wxT('1') ||
 217                       command[n + 1] == wxT('L')) ) {
 218                     // replace it with '%s'
 219                     command[n + 1] = wxT('s');
 220
 221                     foundFilename = TRUE;
 222                 }
 223             }
 224
 225 #if wxUSE_IPC
 226             // look whether we must issue some DDE requests to the application
 227             // (and not just launch it)
 228             strKey += _T("\\DDEExec");
 229             wxRegKey keyDDE(wxRegKey::HKCR, strKey);
 230             if ( keyDDE.Open() ) {
 231                 wxString ddeCommand, ddeServer, ddeTopic;
 232                 keyDDE.QueryValue(_T(""), ddeCommand);
 233                 ddeCommand.Replace(_T("%1"), _T("%s"));
 234
 235                 wxRegKey(wxRegKey::HKCR, strKey + _T("\\Application")).
 236                     QueryValue(_T(""), ddeServer);
 237                 wxRegKey(wxRegKey::HKCR, strKey + _T("\\Topic")).
 238                     QueryValue(_T(""), ddeTopic);
 239
 240                 if (ddeTopic.IsEmpty())
 241                     ddeTopic = wxT("System");
 242
 243                 // HACK: we use a special feature of wxExecute which exists
 244                 //       just because we need it here: it will establish DDE
 245                 //       conversation with the program it just launched
 246                 command.Prepend(_T("WX_DDE#"));
 247                 command << _T('#') << ddeServer
 248                         << _T('#') << ddeTopic
 249                         << _T('#') << ddeCommand;
 250             }
 251             else
 252 #endif // wxUSE_IPC
 253                 if ( !foundFilename ) {
 254                 // we didn't find any '%1' - the application doesn't know which
 255                 // file to open (note that we only do it if there is no DDEExec
 256                 // subkey)
 257                 //
 258                 // HACK: append the filename at the end, hope that it will do
 259                 command << wxT(" %s");
 260             }
 261         }
 262     }
 263     //else: no such file type or no value, will return empty string
 264
 265     return command;
 266 }
 267
 268 bool
 269 wxFileTypeImpl::GetOpenCommand(wxString *openCmd,
 270                                const wxFileType::MessageParameters& params)
 271                                const
 272 {
 273     wxString cmd = GetCommand(wxT("open"));
 274
 275     *openCmd = wxFileType::ExpandCommand(cmd, params);
 276
 277     return !openCmd->IsEmpty();
 278 }
 279
 280 bool
 281 wxFileTypeImpl::GetPrintCommand(wxString *printCmd,
 282                                 const wxFileType::MessageParameters& params)
 283                                 const
 284 {
 285     wxString cmd = GetCommand(wxT("print"));
 286
 287     *printCmd = wxFileType::ExpandCommand(cmd, params);
 288
 289     return !printCmd->IsEmpty();
 290 }
 291
 292 // ----------------------------------------------------------------------------
 293 // getting other stuff
 294 // ----------------------------------------------------------------------------
 295
 296 // TODO this function is half implemented
 297 bool wxFileTypeImpl::GetExtensions(wxArrayString& extensions)
 298 {
 299     if ( m_ext.IsEmpty() ) {
 300         // the only way to get the list of extensions from the file type is to
 301         // scan through all extensions in the registry - too slow...
 302         return FALSE;
 303     }
 304     else {
 305         extensions.Empty();
 306         extensions.Add(m_ext);
 307
 308         // it's a lie too, we don't return _all_ extensions...
 309         return TRUE;
 310     }
 311 }
 312
 313 bool wxFileTypeImpl::GetMimeType(wxString *mimeType) const
 314 {
 315     // suppress possible error messages
 316     wxLogNull nolog;
 317     wxRegKey key(wxRegKey::HKCR, m_ext);
 318
 319     return key.Open() && key.QueryValue(wxT("Content Type"), *mimeType);
 320 }
 321
 322 bool wxFileTypeImpl::GetMimeTypes(wxArrayString& mimeTypes) const
 323 {
 324     wxString s;
 325
 326     if ( !GetMimeType(&s) )
 327     {
 328         return FALSE;
 329     }
 330
 331     mimeTypes.Clear();
 332     mimeTypes.Add(s);
 333     return TRUE;
 334 }
 335
 336
 337 bool wxFileTypeImpl::GetIcon(wxIcon *icon,
 338                              wxString *iconFile,
 339                              int *iconIndex) const
 340 {
 341 #if wxUSE_GUI
 342     wxString strIconKey;
 343     strIconKey << m_strFileType << wxT("\\DefaultIcon");
 344
 345     // suppress possible error messages
 346     wxLogNull nolog;
 347     wxRegKey key(wxRegKey::HKCR, strIconKey);
 348
 349     if ( key.Open() ) {
 350         wxString strIcon;
 351         // it's the default value of the key
 352         if ( key.QueryValue(wxT(""), strIcon) ) {
 353             // the format is the following: <full path to file>, <icon index>
 354             // NB: icon index may be negative as well as positive and the full
 355             //     path may contain the environment variables inside '%'
 356             wxString strFullPath = strIcon.BeforeLast(wxT(',')),
 357             strIndex = strIcon.AfterLast(wxT(','));
 358
 359             // index may be omitted, in which case BeforeLast(',') is empty and
 360             // AfterLast(',') is the whole string
 361             if ( strFullPath.IsEmpty() ) {
 362                 strFullPath = strIndex;
 363                 strIndex = wxT("0");
 364             }
 365
 366             wxString strExpPath = wxExpandEnvVars(strFullPath);
 367             // here we need C based counting!
 368             int nIndex = wxAtoi(strIndex);
 369
 370             HICON hIcon = ExtractIcon(GetModuleHandle(NULL), strExpPath, nIndex);
 371             switch ( (int)hIcon ) {
 372                 case 0: // means no icons were found
 373                 case 1: // means no such file or it wasn't a DLL/EXE/OCX/ICO/...
 374                     wxLogDebug(wxT("incorrect registry entry '%s': no such icon."),
 375                                key.GetName().c_str());
 376                     break;
 377
 378                 default:
 379                     icon->SetHICON((WXHICON)hIcon);
 380                     wxSize size = wxGetHiconSize(hIcon);
 381                     icon->SetSize(size);
 382                     if ( iconIndex )
 383                         *iconIndex = nIndex;
 384                     if ( iconFile )
 385                         *iconFile = strFullPath;
 386                     return TRUE;
 387             }
 388         }
 389     }
 390
 391     // no such file type or no value or incorrect icon entry
 392 #endif // wxUSE_GUI
 393
 394     return FALSE;
 395 }
 396
 397 bool wxFileTypeImpl::GetDescription(wxString *desc) const
 398 {
 399     // suppress possible error messages
 400     wxLogNull nolog;
 401     wxRegKey key(wxRegKey::HKCR, m_strFileType);
 402
 403     if ( key.Open() ) {
 404         // it's the default value of the key
 405         if ( key.QueryValue(wxT(""), *desc) ) {
 406             return TRUE;
 407         }
 408     }
 409
 410     return FALSE;
 411 }
 412
 413 // helper function
 414 wxFileType *
 415 wxMimeTypesManagerImpl::CreateFileType(const wxString& filetype, const wxString& ext)
 416 {
 417     wxFileType *fileType = new wxFileType;
 418     fileType->m_impl->Init(filetype, ext);
 419     return fileType;
 420 }
 421
 422 // extension -> file type
 423 wxFileType *
 424 wxMimeTypesManagerImpl::GetFileTypeFromExtension(const wxString& ext)
 425 {
 426     // add the leading point if necessary
 427     wxString str;
 428     if ( ext[0u] != wxT('.') ) {
 429         str = wxT('.');
 430     }
 431     str << ext;
 432
 433     // suppress possible error messages
 434     wxLogNull nolog;
 435
 436     bool knownExtension = FALSE;
 437
 438     wxString strFileType;
 439     wxRegKey key(wxRegKey::HKCR, str);
 440     if ( key.Open() ) {
 441         // it's the default value of the key
 442         if ( key.QueryValue(wxT(""), strFileType) ) {
 443             // create the new wxFileType object
 444             return CreateFileType(strFileType, ext);
 445         }
 446         else {
 447             // this extension doesn't have a filetype, but it's known to the
 448             // system and may be has some other useful keys (open command or
 449             // content-type), so still return a file type object for it
 450             knownExtension = TRUE;
 451         }
 452     }
 453
 454     if ( !knownExtension )
 455     {
 456         // unknown extension
 457         return NULL;
 458     }
 459
 460     return CreateFileType(wxEmptyString, ext);
 461 }
 462
 463 /*
 464 wxFileType *
 465 wxMimeTypesManagerImpl::GetOrAllocateFileTypeFromExtension(const wxString& ext)
 466 {
 467     wxFileType *fileType = GetFileTypeFromExtension(ext);
 468     if ( !fileType )
 469     {
 470         fileType = CreateFileType(wxEmptyString, ext);
 471     }
 472
 473     return fileType;
 474 }
 475 */
 476
 477 // MIME type -> extension -> file type
 478 wxFileType *
 479 wxMimeTypesManagerImpl::GetFileTypeFromMimeType(const wxString& mimeType)
 480 {
 481     wxString strKey = MIME_DATABASE_KEY;
 482     strKey << mimeType;
 483
 484     // suppress possible error messages
 485     wxLogNull nolog;
 486
 487     wxString ext;
 488     wxRegKey key(wxRegKey::HKCR, strKey);
 489     if ( key.Open() ) {
 490         if ( key.QueryValue(wxT("Extension"), ext) ) {
 491             return GetFileTypeFromExtension(ext);
 492         }
 493     }
 494
 495     // unknown MIME type
 496     return NULL;
 497 }
 498
 499 size_t wxMimeTypesManagerImpl::EnumAllFileTypes(wxArrayString& mimetypes)
 500 {
 501     // enumerate all keys under MIME_DATABASE_KEY
 502     wxRegKey key(wxRegKey::HKCR, MIME_DATABASE_KEY);
 503
 504     wxString type;
 505     long cookie;
 506     bool cont = key.GetFirstKey(type, cookie);
 507     while ( cont )
 508     {
 509         mimetypes.Add(type);
 510
 511         cont = key.GetNextKey(type, cookie);
 512     }
 513
 514     return mimetypes.GetCount();
 515 }
 516
 517 // ----------------------------------------------------------------------------
 518 // create a new association
 519 // ----------------------------------------------------------------------------
 520
 521 wxFileType *wxMimeTypesManagerImpl::Associate(const wxFileTypeInfo& ftInfo)
 522 {
 523     wxCHECK_MSG( !ftInfo.GetExtensions().IsEmpty(), NULL,
 524                  _T("Associate() needs extension") );
 525
 526     bool ok = FALSE ;
 527     int iExtCount = 0 ;
 528     wxString filetype;
 529     wxString extWithDot;
 530
 531     wxString ext = ftInfo.GetExtensions()[iExtCount];
 532
 533     wxCHECK_MSG( !ext.empty(), NULL,
 534                  _T("Associate() needs non empty extension") );
 535
 536     if ( ext[0u] != _T('.') )
 537         extWithDot = _T('.');
 538     extWithDot += ext;
 539
 540     // start by setting the HKCR\\.ext entries
 541     // default is filetype; content type is mimetype
 542     const wxString& filetypeOrig = ftInfo.GetShortDesc();
 543
 544     wxRegKey key(wxRegKey::HKCR, extWithDot);
 545     if ( !key.Exists() )
 546     {
 547         // create the mapping from the extension to the filetype
 548         ok = key.Create();
 549         if ( ok )
 550         {
 551
 552             if ( filetypeOrig.empty() )
 553             {
 554                 // make it up from the extension
 555                 filetype << extWithDot.c_str() + 1 << _T("_file");
 556             }
 557             else
 558             {
 559                 // just use the provided one
 560                 filetype = filetypeOrig;
 561             }
 562
 563             ok = key.SetValue(_T(""), filetype);
 564         }
 565         }
 566         else
 567         {
 568             // key already exists, maybe we want to change it ??
 569             if (!filetypeOrig.empty())
 570                 {
 571                     filetype = filetypeOrig;
 572                     ok = key.SetValue(_T(""), filetype);
 573                 }
 574             else
 575                 {
 576                     ok = key.QueryValue(_T(""), filetype);
 577                 }
 578         }
 579         // now set a mimetypeif we have it, but ignore it if none
 580         const wxString& mimetype = ftInfo.GetMimeType();
 581         if ( !mimetype.empty() )
 582         {
 583             // set the MIME type
 584             ok = key.SetValue(_T("Content Type"), mimetype);
 585
 586             if ( ok )
 587             {
 588                 // create the MIME key
 589                 wxString strKey = MIME_DATABASE_KEY;
 590                 strKey << mimetype;
 591                 wxRegKey keyMIME(wxRegKey::HKCR, strKey);
 592                 ok = keyMIME.Create();
 593
 594                 if ( ok )
 595                 {
 596                     // and provide a back link to the extension
 597                     ok = keyMIME.SetValue(_T("Extension"), extWithDot);
 598                 }
 599             }
 600         }
 601
 602
 603     // now make other extensions have the same filetype
 604
 605     for (iExtCount=1; iExtCount < ftInfo.GetExtensionsCount(); iExtCount++ )
 606         {
 607             ext = ftInfo.GetExtensions()[iExtCount];
 608             if ( ext[0u] != _T('.') )
 609                extWithDot = _T('.');
 610             extWithDot += ext;
 611
 612             wxRegKey key(wxRegKey::HKCR, extWithDot);
 613             if ( !key.Exists() ) ok = key.Create();
 614             ok = key.SetValue(_T(""), filetype);
 615
 616         // now set any mimetypes we may have, but ignore it if none
 617         const wxString& mimetype = ftInfo.GetMimeType();
 618         if ( !mimetype.empty() )
 619         {
 620             // set the MIME type
 621             ok = key.SetValue(_T("Content Type"), mimetype);
 622
 623         if ( ok )
 624         {
 625                 // create the MIME key
 626                 wxString strKey = MIME_DATABASE_KEY;
 627                 strKey << mimetype;
 628                 wxRegKey keyMIME(wxRegKey::HKCR, strKey);
 629                 ok = keyMIME.Create();
 630
 631         if ( ok )
 632         {
 633                     // and provide a back link to the extension
 634                     ok = keyMIME.SetValue(_T("Extension"), extWithDot);
 635         }
 636         }
 637     }
 638
 639
 640     } // end of for loop; all extensions now point to HKCR\.ext\Default
 641
 642     // create the filetype key itself (it will be empty for now, but
 643     // SetCommand(), SetDefaultIcon() &c will use it later)
 644     wxRegKey keyFT(wxRegKey::HKCR, filetype);
 645     ok = keyFT.Create();
 646
 647     wxFileType *ft = NULL;
 648     ft = CreateFileType(filetype, extWithDot);
 649
 650     if (ft)
 651     {
 652             if (! ftInfo.GetOpenCommand ().IsEmpty() ) ft->SetCommand (ftInfo.GetOpenCommand (), wxT("open"  ) );
 653             if (! ftInfo.GetPrintCommand().IsEmpty() ) ft->SetCommand (ftInfo.GetPrintCommand(), wxT("print" ) );
 654             // chris: I don't like the ->m_impl-> here FIX this ??
 655             if (! ftInfo.GetDescription ().IsEmpty() ) ft->m_impl->SetDescription (ftInfo.GetDescription ()) ;
 656             if (! ftInfo.GetIconFile().IsEmpty() ) ft->SetDefaultIcon (ftInfo.GetIconFile(), ftInfo.GetIconIndex() );
 657
 658         }
 659     return ft;
 660 }
 661
 662 bool wxFileTypeImpl::SetCommand(const wxString& cmd,
 663                                 const wxString& verb,
 664                                 bool WXUNUSED(overwriteprompt))
 665 {
 666     wxCHECK_MSG( !m_ext.IsEmpty() && !verb.IsEmpty(), FALSE,
 667                  _T("SetCommand() needs an extension and a verb") );
 668
 669     if ( !EnsureExtKeyExists() )
 670         return FALSE;
 671
 672     wxRegKey rkey(wxRegKey::HKCR, GetVerbPath(verb));
 673 #if 0
 674     if ( rkey.Exists() && overwriteprompt )
 675     {
 676 #if wxUSE_GUI
 677         wxString old;
 678         rkey.QueryValue(wxT(""), old);
 679         if ( wxMessageBox
 680              (
 681                 wxString::Format(
 682                     _("Do you want to overwrite the command used to %s "
 683                       "files with extension \"%s\" ?\nCurrent value is \n%s, "
 684                       "\nNew value is \n%s %1"), // bug here FIX need %1 ??
 685                     verb.c_str(),
 686                     m_ext.c_str(),
 687                     old.c_str(),
 688                     cmd.c_str()),
 689                 _("Confirm registry update"),
 690                 wxYES_NO | wxICON_QUESTION
 691              ) != wxYES )
 692 #endif // wxUSE_GUI
 693         {
 694             // cancelled by user
 695             return FALSE;
 696         }
 697     }
 698 #endif
 699     // TODO:
 700     // 1. translate '%s' to '%1' instead of always adding it
 701     // 2. create DDEExec value if needed (undo GetCommand)
 702     return rkey.Create() && rkey.SetValue(_T(""), cmd + _T(" \"%1\"") );
 703 }
 704
 705 /* // no longer used
 706 bool wxFileTypeImpl::SetMimeType(const wxString& mimeTypeOrig)
 707 {
 708     wxCHECK_MSG( !m_ext.IsEmpty(), FALSE, _T("SetMimeType() needs extension") );
 709
 710     if ( !EnsureExtKeyExists() )
 711         return FALSE;
 712
 713     // VZ: is this really useful? (FIXME)
 714     wxString mimeType;
 715     if ( !mimeTypeOrig )
 716     {
 717         // make up a default value for it
 718         wxString cmd;
 719         wxSplitPath(GetCommand(_T("open")), NULL, &cmd, NULL);
 720         mimeType << _T("application/x-") << cmd;
 721     }
 722     else
 723     {
 724         mimeType = mimeTypeOrig;
 725     }
 726
 727     wxRegKey rkey(wxRegKey::HKCR, m_ext);
 728     return rkey.Create() && rkey.SetValue(_T("Content Type"), mimeType);
 729 }
 730 */
 731
 732 bool wxFileTypeImpl::SetDefaultIcon(const wxString& cmd, int index)
 733 {
 734     wxCHECK_MSG( !m_ext.IsEmpty(), FALSE, _T("SetDefaultIcon() needs extension") );
 735     wxCHECK_MSG( !m_strFileType.IsEmpty(), FALSE, _T("File key not found") );
 736 //    the next line fails on a SMBshare, I think because it is case mangled
 737 //    wxCHECK_MSG( !wxFileExists(cmd), FALSE, _T("Icon file not found.") );
 738
 739     if ( !EnsureExtKeyExists() )
 740         return FALSE;
 741
 742     wxRegKey rkey(wxRegKey::HKCR, m_strFileType + _T("\\DefaultIcon"));
 743
 744     return rkey.Create() &&
 745            rkey.SetValue(_T(""),
 746                          wxString::Format(_T("%s,%d"), cmd.c_str(), index));
 747 }
 748
 749 bool wxFileTypeImpl::SetDescription (const wxString& desc)
 750 {
 751     wxCHECK_MSG( !m_strFileType.IsEmpty(), FALSE, _T("File key not found") );
 752     wxCHECK_MSG( !desc.IsEmpty(), FALSE, _T("No file description supplied") );
 753
 754     if ( !EnsureExtKeyExists() )
 755         return FALSE;
 756
 757     wxRegKey rkey(wxRegKey::HKCR, m_strFileType );
 758
 759     return rkey.Create() &&
 760            rkey.SetValue(_T(""), desc);
 761 }
 762
 763 // ----------------------------------------------------------------------------
 764 // remove file association
 765 // ----------------------------------------------------------------------------
 766
 767 bool wxFileTypeImpl::Unassociate()
 768 {
 769     bool result = TRUE;
 770     if ( !RemoveOpenCommand() )
 771         result = FALSE;
 772     if ( !RemoveDefaultIcon() )
 773         result = FALSE;
 774     if ( !RemoveMimeType() )
 775         result = FALSE;
 776    if ( !RemoveDescription() )
 777         result = FALSE;
 778
 779 /*
 780     //this might hold other keys, eg some have CSLID keys
 781     if ( result )
 782     {
 783         // delete the root key
 784         wxRegKey key(wxRegKey::HKCR, m_ext);
 785         if ( key.Exists() )
 786             result = key.DeleteSelf();
 787     }
 788 */
 789     return result;
 790 }
 791
 792 bool wxFileTypeImpl::RemoveOpenCommand()
 793 {
 794    return RemoveCommand(_T("open"));
 795 }
 796
 797 bool wxFileTypeImpl::RemoveCommand(const wxString& verb)
 798 {
 799     wxCHECK_MSG( !m_ext.IsEmpty() && !verb.IsEmpty(), FALSE,
 800                  _T("RemoveCommand() needs an extension and a verb") );
 801
 802     wxString  sKey = m_strFileType;
 803     wxRegKey rkey(wxRegKey::HKCR, GetVerbPath(verb));
 804
 805     // if the key already doesn't exist, it's a success
 806     return !rkey.Exists() || rkey.DeleteSelf();
 807 }
 808
 809 bool wxFileTypeImpl::RemoveMimeType()
 810 {
 811     wxCHECK_MSG( !m_ext.IsEmpty(), FALSE, _T("RemoveMimeType() needs extension") );
 812
 813     wxRegKey rkey(wxRegKey::HKCR, m_ext);
 814     return !rkey.Exists() || rkey.DeleteSelf();
 815 }
 816
 817 bool wxFileTypeImpl::RemoveDefaultIcon()
 818 {
 819     wxCHECK_MSG( !m_ext.IsEmpty(), FALSE,
 820                  _T("RemoveDefaultIcon() needs extension") );
 821
 822     wxRegKey rkey (wxRegKey::HKCR, m_strFileType  + _T("\\DefaultIcon"));
 823     return !rkey.Exists() || rkey.DeleteSelf();
 824 }
 825
 826 bool wxFileTypeImpl::RemoveDescription()
 827 {
 828     wxCHECK_MSG( !m_ext.IsEmpty(), FALSE,
 829                  _T("RemoveDescription() needs extension") );
 830
 831     wxRegKey rkey (wxRegKey::HKCR, m_strFileType );
 832     return !rkey.Exists() || rkey.DeleteSelf();
 833 }
 834
 835 #endif
 836   // __WIN16__
 837
 838 #endif // wxUSE_MIMETYPE